From: George Ogata <g_ogata@...>
Date: 2004-07-03T07:57:52+09:00
Subject: Re: How to detect if variable has been defined yet?

"David A. Black" <dblack@wobblini.net> writes:

>   x ||= 0
>   x += 1
>
> (Note that you can't condense that into (x ||= 0) += 1, though you
> could do: x = (x ||= 0) + 1 )

You can drop the inner assignment too:

  x = (x || 0) + 1